Which symptom is the client who is prescribed alpha1-antagonist therapy likely to complain of within the first 24 hours?
1. Difficulty swallowing
2. Blurring of vision
3. Decreased urinary frequency
4. Attacks of dizziness and faintness
Correct Answer: 4
Rationale 1: Alpha receptors are not located on the swallowing muscles and have no effect on swallowing.
Rationale 2: Beta-adrenergic blockers, and not alpha-adrenergic blockers, have an effect on the beta receptors present in the eye, so alpha1-antagonist therapy has no effect on vision.
Rationale 3: Alpha1-antagonist therapy can cause increased urinary frequency due to more active smooth muscle contractions in the urinary tract.
Rationale 4: The first-dose phenomenon causes syncope due to reduced blood flow to the brain, and so attacks of dizziness and faintness can occur.
Global Rationale: The first-dose phenomenon causes syncope due to reduced blood flow to the brain, and so attacks of dizziness and faintness can occur. Alpha receptors are not located on the swallowing muscles and have no effect on swallowing. Beta-adrenergic blockers, and not alpha-adrenergic blockers, have an effect on the beta receptors present in the eye, so alpha1-antagonist therapy has no effect on vision. Alpha1-antagonist therapy can cause increased urinary frequency due to more active smooth muscle contractions in the urinary tract.
You might also like to view...
The nurse is aware that a patient with liver failure often requires vitamin therapy. Which vitamin does the liver require for the synthesis of prothrombin?
A) Vitamin B12 B) Vitamin A C) Vitamin D D) Vitamin K
The maximum amount of medication that can be administered using the deltoid muscle is ________ mL.
Fill in the blank(s) with the appropriate word(s).
A nurse researcher is planning to conduct secondary analysis on data collected for a previous study. Which are valid rationale for this plan? Standard Text: Select all that apply
1. So much data was collected in the first study that is was not possible to analyze it in one study. 2. Secondary analysis studies are efficient. 3. Because data is expensive to collect, it might as well be used to its full extent. 4. Secondary analysis studies are safe as data has already been validated. 5. Secondary analysis could help the researcher understand the effect of treatment on a different population.
A patient diagnosed with myopia asks the nurse to explain the condition. How should the nurse respond?
a. "It is blindness." b. "It is farsightedness." c. "It is nearsightedness." d. "It is cataract development."